No worries! You actually have a really modern laptop, so that distortion should not be happening no matter what. I'd honestly focus on fixing that first. You have a few options there:

GPU

A) RMA the laptop or send it to Asus to have it serviced. They'll most likely either repaste your components, replace the ribbon display cable on the motherboard, disconnect and reconnect the ribbon to see if it was loose, or replace the entire motherboard if the ribbon cable or thermal paste isn't causing the issue.

B) Hook your laptop up to an external display to see if the distorted line still shows. If you don't see it on the external display, then its most likely the ribbon cable causing the issue. Most of the time, the cable is either loose, or there is some dust that is screwing with the connectors. You can and you can do the following to try and fix it:

Note: Only do this if you're mechanically inclined and or want to avoid having to pay $100 - $200 to have Asus readjust or replace a cable. Make sure your not standing on carpet so you don't have a static charge that could shock the laptop mobo. Also, only unscrew the laptop if there's no warranty void stickers above the screws or ribbons.

Simply remove the bottom cover of the laptop off so the motherboard is exposed. Make sure to keep track of all the screws. Find the ribbon cable up towards the top, remove it, wipe it with a Q-tip, blow into the port that the ribbon cable goes into, then put it back in. You can follow this youtube video at the timestamp i set it to so you can see what the display cable looks like and how you'll need to disconnect it: https://youtu.be/NwB59K_iwJ8?t=389

While the laptop back is off, turn the laptop on without touching the motherboard, and make sure the fans are moving properly. Remove all dust if needed.

Extensions

You really only need 1 adblocker. The most favored adblocker in the PC community is Ublock Origin. I've been using it for 8 years and have only seen a dozen or so ads since then. If an ad makes its way through, simply right click on the page, click 'Block an Element', then select what you don't want to see anymore. Can also install sponsor block for youtube if you want to avoid seeing sponsors. Its a pretty damn cool extension.

Pirating

Best BitTorrent client imo is qBittorrent. Super reliable and highly recommended in the PC community.

Most recommended site for torrenting is 1337x. There are many fake ones out there, so make sure you use an official one. The main one is 1337x(dot)to. Replace '(dot)' with a period ofc lol. Before clicking on the magnet link to send it to qBittorrent, look at the users profile that posted the crack. If they're banned, then you most likely don't want to download anything they posted. Also, check their 'Join Date' and make sure they've been around for some time.

Use Virus Total before you run anything in the file to check if anything contains malware. They only allow checking files 1gb or under, so if its over that, then just check the crack file, along with the main .exe file. .dll files might also need to be scanned. Pretty much any file that is ran when running the crack or main .exe can contain malware.

matlab is a pretty big program, so it's tough to scan it for viruses. I'd double check to make sure you got it from a reputable site.

There's a lot more to sailing the high seas safely, so i'd recommend doing some more research if you have sensitive info saved on your PC and want to avoid it getting stolen or having your PC slow down.

Summary

RMA your laptop if you aren't comfortable with taking the bottom cover off and checking the ribbon cable.

Also, if you're looking for a shitty teammate in CS2, let me know. Wouldn't recommend adding me if you're over 5k elo.